Preparation, morphology and properties of acid and amine modified multiwalled carbon nanotube/polyimide composite

Yuen, Siu-Ming; Chen‐Chi, M.; Lin, Yun-Siang; Kuan, Hsu‐Chiang

doi:10.1016/j.compscitech.2006.12.006

Cited by 234 publications

(84 citation statements)

References 24 publications

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“…Though polyimide and epoxy are known to have similar free surface energies [34], the difference in their CNT-substrate interfacial energies may be due to local surface deformations during peeling, especially for epoxy, which generally has a lower bulk modulus [35,36]. In other words, if the measured interfacial energies were divided by a well-defined contact area, it is possible the CNT-substrate interfacial energy per unit area would be similar for these two polymers.…”

Section: Extracting Interfacial Fracture Energy From Peeling Force Spmentioning

confidence: 99%

Interfacial energy between carbon nanotubes and polymers measured from nanoscale peel tests in the atomic force microscope

Strus

Cano

Pipes

et al. 2009

Composites Science and Technology

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This document has been made available through Purdue e-Pubs, a service of the Purdue University Libraries. Please contact epubs@purdue.edu for additional information.Strus, Mark C.; Cano, Camilo I.; Pipes, R. Byron; Nguyen, Cattien V.; and Raman, Arvind, "Interfacial energy between carbon nanotubes and polymers measured from nanoscale peel tests in the atomic force microscope" (2009 b s t r a c tThe future development of polymer composite materials with nanotubes or nanoscale fibers requires the ability to understand and improve the interfacial bonding at the nanotube-polymer matrix interface. In recent work [Strus MC, Zalamea L, Raman A, Pipes RB, Nguyen CV, Stach EA. Peeling force spectroscopy: exposing the adhesive nanomechanics of one-dimensional nanostructures. Nano Lett 2008;8(2):544-50], it has been shown that a new mode in the Atomic Force Microscope (AFM), peeling force spectroscopy, can be used to understand the adhesive mechanics of carbon nanotubes peeled from a surface. In the present work, we demonstrate how AFM peeling force spectroscopy can be used to distinguish between elastic and interfacial components during a nanoscale peel test, thus enabling the direct measurement of interfacial energy between an individual nanotube or nanofiber and a given material surface. The proposed method provides a convenient experimental framework to quickly screen different combinations of polymers and functionalized nanotubes for optimal interfacial strength.Published by Elsevier Ltd.

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Section: Extracting Interfacial Fracture Energy From Peeling Force Spmentioning

confidence: 99%

Interfacial energy between carbon nanotubes and polymers measured from nanoscale peel tests in the atomic force microscope

Strus

Cano

Pipes

et al. 2009

Composites Science and Technology

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“…Hence, to make effective reactant and highly dispersible in solvent, MWCNT was modified by the mixture of HNO 3 and H 2 SO 4 (3:1) according to the procedure described in [31]. Acid modification generates many oxygenated functional group on the surface of MWCNT.…”

Section: Preparation Of Tio 2 Coated Mwcntmentioning

confidence: 99%

Microwave absorption behaviour of MWCNT based nanocomposites in X-band region

Bhattacharya¹,

Sahoo²,

Das³

2013

Express Polym. Lett.

106

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Multiwall carbon nanotube (MWCNT) based nanocomposites were prepared by a two-step process. Firstly, titanium dioxide (TiO2) coated MWCNT was prepared via sol-gel technique. In the second step, the acid modified MWCNTs were dispersed in the thermoplastic polyurethane matrix by solution blending process. Characterizations of the nanocomposites were done by X-ray diffraction analysis, X-ray photoelectron spectroscopy, Scanning Electron Microscopy, Transmission Electron Microscopy and Energy-dispersive X-ray spectroscopy. Microwave absorption studies of the nanocomposites were carried out in X-band region. The microwave absorption result was discussed with the help of complex permittivity and permeability of the prepared radar absorbing material (RAM). The result showed superior microwave absorption property of the composite containing both TiO2 coated MWCNT and magnetite (Fe3O4). This result is due to the effective absorption of both electrical and magnetic components of the microwave. RAM-MW, RAM-Ti, RAM-Ti@MW and RAMTi@ MW/Fe and showed the maximum reflection loss of –16.03 dB at 10.99 GHz, –8.4 dB at 12.4 GHz, –36.44 dB at 12.05 GHz and –42.53 dB at 10.98 GHz respectively. Incorporation of MWCNT enhanced the thermal stability of the composite which has been confirmed by thermogravimetric analysis

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“…This behavior may indicate that the crystallinity of Poly (Imine)/MWCNT is higher than MWCNT-NH 2 which may be due to covalent linkage between the MWCNT's by organic compound (Imine group) with less angle strain. That constitutes the evidence for the fact that the treatment was safe and enhanced the graphene layer organization [18] [24].…”

Section: Scanning Electron Microscopy (Sem) Figures 5(a)-(h)mentioning

confidence: 99%

New Strategy for Chemically Attachment of Imine Group on Multi-Walled Carbon Nanotubes Surfaces: Synthesis, Characterization and Study of DC Electrical Conductivity

Al‐Shuja'a¹,

Obeid²,

El-Shekeil³

et al. 2017

MSCE

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This paper used a new approach of preparing poly-composites by covalent linkage between the MWCNT's by imine group. The Poly (Imine)/MWCNT Composite was synthesized by the solution blending method from reacted amino multi-walled carbon nanotubes (MWCNT-NH 2 ) with Terephthalaldehyde (TPAL). The obtained poly-composite was characterized by FT-IR, UV-Vis, XRD, TEM, SEM, TGA, DSC and DC electrical conductivity. The formation of Poly (Imine)/MWCNT composite was confirmed. The DC electrical conductivity of poly-composites was within the range 2.3 × 10 −4 -5.3 × 10 −4 S/cm due to the interaction between the nanotubes.

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Preparation, morphology and properties of acid and amine modified multiwalled carbon nanotube/polyimide composite

Cited by 234 publications

References 24 publications

Interfacial energy between carbon nanotubes and polymers measured from nanoscale peel tests in the atomic force microscope

Interfacial energy between carbon nanotubes and polymers measured from nanoscale peel tests in the atomic force microscope

Microwave absorption behaviour of MWCNT based nanocomposites in X-band region

New Strategy for Chemically Attachment of Imine Group on Multi-Walled Carbon Nanotubes Surfaces: Synthesis, Characterization and Study of DC Electrical Conductivity

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